Nitrous plugs and nitrous AFR?

[91CoupeMike]

So I got an innovate lc1 and I should have a 125 shot on the car In a few weeks.

What plug should I run? And what AFR should I aim for? 11.5:1 or closer to 12:1?

[Captain Crawfish]

Something like a TR6 with a short fat ground works good close them up to .032. 12:1 is a good number for the A/f

[crapstang]

Zex kit?

[91CoupeMike]

Zex kit?

Yep, if everything works out, yessiree.

[Diabolic]

I run the NGK with a non projected tip 2 heat ranges colder than stock. I would make a couple passes at the track and see what AFR she likes. Pick a plug like #7 and read it after a pass. Take a good illuminated magnifying glass.

[91CoupeMike]

Not sound stupid, but what do you mean by non projected tip?

[Zippo]

Do you have any part numbers on a plug that would cross over?

Im at work and can't do a ton of research.

NGK TR6IX is stock umber 3689
NGK Br7ef is stock number 3346
NGK B8efs is stock number 1049

[91CoupeMike]

NGK TR6IX is stock umber 3689
NGK Br7ef is stock number 3346
NGK B8efs is stock number 1049

Thanks!

[Zippo]

Thanks!

No problem, go ahead and get the 8's you know your gonna use a 200 shot anyway

[91CoupeMike]

I noticed the tr6ix is iridium, any reason why I would run those?, instead of tr6 (4177s) which are copper.

Both projected tip as well.

Are non projected the plugs that don't have ground straps?

[91CoupeMike]

No problem, go ahead and get the 8's you know your gonna use a 200 shot anyway

Might aswell, it'll hold!

[Diabolic]

Ill get you the part number later today. I'm not at home. I run a .32 gap with a 100 shot and 15 pounds of boost. The non projected tip has a strap just like a stock plug but nothing protrudes past the threaded portion of the plug. This is the best type of plug for your application IMHO.

[Zippo]

I noticed the tr6ix is iridium, any reason why I would run those?, instead of tr6 (4177s) which are copper.

Both projected tip as well.

Are non projected the plugs that don't have ground straps?

Actually I wasn't aware of that, personally I wouldn't use them I was just going off of my notes in my phone I made for when I'm out of state racing and have a hard time finding what I'm looking for. The NGK TR6 is a projected tip but I ran them for years on a 100 shot on the street. I run the 8's all the time now FWIW.

[91CoupeMike]

Awesome man thanks.

This will be on the stock heads, I'll still use the kit with the Brodix, which require gasket plugs. I'll take the time to index those. Should I index the ones going into the stock heads? I know the gain is minimal.

Where locally can I get indexing washers?

[Txstang1]

No problem, go ahead and get the 8's you know your gonna use a 200 shot anyway

Yelp ! autolite ar3933's here